I don't understand. Why does it matter if it's a specific communication protocol? If you have to filter your language when you're in a life and death situation with a potentially dangerous person who has used needles lying around, you've used up precious processing power that could otherwise be used to keep yourself safe and the sick person alive.

For the record - I checked with them - and they told me they were asked to take a test to check if they harbored "unknown biases". They were then sent to diversity and inclusion training, and came out totally confused about what to do and say, but they were assured that the hospital and the ambulance services were monitoring comms and wouldn't look favorably on "potentially offensive" terms.

Trying to describe a homeless man sleeping on rotten cardboard boxes who is covered in urine and feces with needles strewn around everywhere, who is both asking for help and attacking them is VERY HARD to do without using a term that someone could potentially find offensive.